Perhaps Billybuzzy can speak more on this then I, but we have left out of NE a few times in Apr and also in Nov. It was cold on deck in Nov but not for long as we sailed South. I have sailed on only 1 RCI this past Nov and they had the indoor pool area as well as the outside area. I have done many Celebrity cruises but they were in Apr and Sept and I did not find it cold for myself for the first day at sea and they also had the indoor pool area. I like getting in the Hot tub outside when it is cold so I may not be the one to ask. I do this at home, I wait for the SNOW and then get in our Hot tub outside LOL Oh yes I wanted to also ask Billybuzzy which Celebrity ship and to where are you going! So happy you found something ASAP !!!